|Easton's Bible Dictionary|
An implement, a Jew, chief of the priests at Ephesus (Acts 19:13-16); i.e., the head of one of the twenty-four courses of the house of Levi. He had seven sons, who "took upon them to call over them which had evil spirits the name of the Lord Jesus," in imitation of Paul. They tried their method of exorcism on a fierce demoniac, and failed. His answer to them was to this effect (19:15): "The Jesus whom you invoke is One whose authority I acknowledge; and the Paul whom you name I recognize to be a servant or messenger of God; but what sort of men are ye who have been empowered to act as you do by neither?" (Lindsay on the Acts of the Apostles.)
Int. Standard Bible Encyclopedia
se'-va (Skeua): A Jew, a chief priest, resident in Ephesus, whose seven sons were exorcists (Acts 19:14). Ewald regards the name as being Hebrew shekhabhyah. He was not an officiating priest, as there were only synagogues in Asia Minor. He may have belonged to a high-priestly family, or perhaps at one time he had been at the head of one of the 24 courses in the temple.
In the narrative the construction is loose. There were seven sons (Acts 19:14), and it would appear (Acts 19:16) that in this particular case all were present. But (Acts 19:16) the demon-possessed man over-powered "both of them." Textus Receptus of the New Testament gets over the difficulty by omitting "both," but Codices Sinaiticus, Alexandrinus, Vaticanus, Bezae, so Tischendorf, Westcott and Hort, von Soden, and the best critics, retain the difficult reading. The explanation is that Acts 19:14 states the custom: "who did this" being hoi touto poiountes, "who used to do this." Acts 19:15 and 16 state a particular case in which two took part, but the incident is introduced in a careless manner.
Ewald would translate amphoteron as "in both sides," but this is impossible. Baur understood "disciples" for "sons." Codex Bezae and Syriac have an interesting expansion which Blass considers original (Acts 19:14): "Among whom also the sons (Syriac `seven') of a certain Sceva, a priest, wished to do the same, (who) were in the custom of exorcising such. And entering into the demon-possessed man they began to call upon the Name, saying, `We charge you by Jesus whom Paul preaches to come out.' "
S. F. Hunter
Sceva (1 Occurrence)
Acts 19:14 There were seven sons of one Sceva, a Jewish chief priest, who did this. (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)